Nina is a Raven, an Armored Core pilot under the employ of a PMC. Ravens are sought after by corporations, terrorists, and guards to perform jobs that are considered too hard or politically damaging for a normal unit to engage in. The AC she pilots, AZ03, is a blue lightweight, reverse-joint biped that is good for air combat, with a shield for defense. She was partnered with Michael F and Isami Jash, but Isami left. She and Michael are members of the Saphirus Force, Rosenthal's tech division.